HP E840 A Series User And Service Manual page 33

Figure 2-10. Attaching the Rack Mount Adapters and Chassis Sections to the Mainframe.
Chapter 2
7. Attach the rack mount adapters to the mainframe using the eight
m5x8 pan head screws provided. To mount the mainframe flush with
the rack front, begin with the 3rd hole from the front of the adapter
(Figure 2-10).
The mainframe can be recess mounted up to 270.7 mm (10.6 inches)
in approximately 12.3 mm (1/2 inch) increments. Note that in some
recess positions, the front screw attaching the rack slide adapter may
have to be removed.
8. Attach the chassis sections to the rack mount adapters using four
m5x8 flat head screws per side (Figure 2-10).
Standard Rack Mount
Adapter (Option 923)
VXI Plug&Play Compliant Rack
Mount Adapter (Option 925)
9. If additional rack space is required for other instruments, remove the
mainframe feet by lifting the tabs and sliding the feet towards the
center of the mainframe.
Chassis
Sections
m5x8 Flat
head Screws
Rack Mounting and Option Installation
m5x8 Pan
Head Screws
Chassis
Sections
m5x8 Flat
head Screws
33